Amnesty International on Tuesday said the warring parties in Yemen have been responsible for many civilian casualties during the months-long conflict.
In its latest report on the conflict, the UK-based rights organization urged to form an international committee in order to investigate possible war crimes in the country.
The report accused all those participating in the conflict including the Saudi-led military coalition which has been bombing the Houthi militants and forces loyal to the former president since March.
According to statistics by the organization, around 4.000 people, half of whom were civilians, have been killed.
And around 19.000 others have been injured in the fighting, which was sparked by the ouster of the UN-backed government by the Houthi militants in late 2014.
AI said it is investigating deadly attacks by the coalition and the pro- and -anti-Houthi forces that left scores of civilians including children dead in the southern cities of Taiz and Aden.
These deadly attacks occurred in densely populated areas where there were not military targets a matter which reflected the carelessness about the safety of civilians from all parties, it added.
Weeks ago, other rights organizations including HRW accused the Arab coalition of using banned weapons such as cluster bombs in Yemen.
The AI's report coincided with fresh heavy airstrikes by the coalition and persistent battles between the pro- and anti-Houthi forces in several Yemeni cities.
In the west, several strikes targeted the Hodeida seaport which local sources said have been completely destroyed. The port has been targeted many times since March.
Other airstrikes targeted Houthi forces and weapons in the cities of Ibb, Dhammar, Marib, Sanaa, Hajjah and Saada.